TestRail is visible in all projects in JIRA except one project

[Phani Bhushan Nagula]

We have integrated TestRail with JIRA and the same is visible in all the projects except one project in JIRA. We are unable to trace the test cases for each user story in one of the project in JIRA. Could you please let me know what could the issue and resolution.

[Andy Heinzer]

I am not very familiar with this TestRail plugin, however from reviewing their current documentation, it does appear that you can select both which users and which projects that this plugin with work with in Jira.  Please see http://docs.gurock.com/testrail-userguide/howto-permissions#project_access

That particular section shows how access can be overridden for specific projects.   I would try to start here and see if this helps.